cap

A protective covering that is part of a plant.

Something serving as a cover or protection.

The upper part of a column that supports the entablature.

A fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom.

A mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive.

An upper limit on what is allowed.

“they established a cap for prices”

(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth.

A tight-fitting headdress.

A top (as for a bottle).

Restrict the number or amount of.

“We had to cap the number of people we can accept into our club”

Lie at the top of.

“Snow capped the mountains”